In the [Signature/Seal] menu’s [Signature], you can apply a signature to the open PDF.
This section explains how to apply a signature using “SKYCOM Standard Signature” as the signature method.
Before applying the signature, ensure that the preparing for signature is ready.
Please pay special attention to the following points:
Add archive timestamp | After the process of applying a signature, the process of adding an archive timestamp is automatically performed. |
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Set to invisibility | Do not display the signature mark on the PDF. |
Save settings and do not show this dialog again | From the next time, the Signature Method dialog will not be displayed, and the current settings will be applied automatically. |
If you have not set to add an archive timestamp, the validity period of the guarantee at this point is “the validity period of the certificate used for the signature (about 1 to 5 years)”.
If you need long-term storage and long-term guarantee of electronic documents, you need to add an archive timestamp. (See: Archive)
In addition, the next actions and their deadlines required for long-term storage and long-term guarantee can be confirmed in the [Verification] > [Verify] > [Property of signature] > [PAdES] tab.
This section explains how to apply a signature to a PDF for use in electronic applications to public institutions, using “SKYCOM Standard Signature” as the signature method.
Checking Environment Settings
The application system of public institutions may not support signatures including timestamps or signatures in the CAdES profile format.When applying a signature to a PDF for use in electronic applications to public institutions, be sure to set the [Signature] tab in the preferences as follows:
When Using a Certificate Stored in a My Number Card
If you are adding a signature using an electronic certificate stored in a My Number Card (Individual Number Card), please check in advance that the following preparations are in place.
Please note that the addition of a signature using a My Number Card has been confirmed to work only in a Japanese OS environment.
Installation of JPKI User Client Software (Version 3.3 or later)
You need to install the JPKI User Client Software (Version 3.3 or later) on the machine you are using.
You can download it from the homepage of the Japanese Public Key Infrastructure .
When Using a Certificate Stored in an IC Card Other Than the My Number Card
If the electronic certificate you are using is stored in an IC card, please import it into the certificate store of the machine you are using.
The method of import and the necessary settings vary depending on the certificate. Please contact the institution that issued the certificate.
When adding a signature, you can use the imported certificate by selecting [Certificate Store/IC Card] as the certificate type.
When Using a Certificate File
If you have obtained the electronic certificate you are using as a file, please save it in any folder or import it into the certificate store of the machine you are using.
When adding a signature, you can use the certificate by selecting [File] or [Certificate Store/IC Card] as the certificate type.
Set to invisibility | Do not display the signature mark on the PDF. |
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Save settings and do not show this dialog again | From the next time, the Signature Method dialog will not be displayed, and the current settings will be applied automatically. |
When you set [JPKI] as the certificate type and operate, if the error message is displayed, please check the following.